Developer Tools
Free online utilities for formatting, validating, encoding, and converting developer data.
9 tools
- JSON FormatterFormat and indent JSON so it is easy to read, with this free JSON formatter.
- JSON ValidatorCheck whether JSON is valid and see a plain-language error if it is not.
- Base64 EncoderEncode text to Base64 in your browser with this free encoder.
- Base64 DecoderDecode a Base64 string back to text in your browser.
- URL EncoderEncode text for safe use in a URL query string.
- URL DecoderDecode a percent-encoded URL or query value back to readable text.
- CSV to JSONConvert CSV rows into a JSON array using the header row as keys.
- JSON to CSVTurn a JSON array of objects into a CSV file you can open in a spreadsheet.
- CSV to ExcelSave CSV data as an Excel workbook with this free converter.